Acoustic level calibrator



FIG. 1 is a perspectve view of a acoustic level calibrator, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof, the right elevational view is a mirror image of the left elevational view;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof, the elements shown in broken lines is for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for a acoustic level calibrator, as shown and described. 